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Dippers are typically low-mass, pre-main-sequence stars that display dips intheir light curves. These dips have been attributed to dusty warps that form inthe inner part of the disk. Our goal is to derive the properties of dipperstars in Taurus to assess the physical mechanisms that induce dipper lightcurves. We used the light curves of K2 C4 and C13 to select a dipper sampleamong 179 members and possible members of the Taurus star-forming region basedon the light-curve morphology. We studied the periodicities by combiningperiodograms with wavelet analysis and derived the stellar parameters from thephotometry. We also studied the morphology of the photometric dips. We find adipper occurrence of ~30% in disk-bearing stars observed with K2 that wereidentified visually by us. This represents a lower limit to their trueoccurrence. About half of the dippers are aperiodic, and most of these aredominated by another type of variability. The chosen sample is of late spectraltype (K/M), low mass and moderate mass accretion rates and has periods of a fewdays. We observed a transient dipper over a few rotation cycles and a dipperwith a changing period. The structure of the dips can be complex and variesstrongly over timescales of down to one stellar rotation. The corotation radiiare located at a few stellar radii, and the temperatures at corotation allowdust survival. Many of the systems are seen at moderate to high inclination. Wefind that the angular extension of the dusty structure producing the dips iscorrelated with the stellar period. Magnetospheric accretion, which causes anaccretion column and its base to occult the star, can explain most of theobserved light curves. Although compatible with the model, many of the stellarinclination angles are moderate and do not exclude mechanisms other than theoccultation by an inner disk warp to account for dipper light curves.

The dipper population of Taurus seen with K2